Improvement in lanterns



E. F. CASH & A. L. BARON.

Lantern.

No. 222,663. Patented Dec. 16, I879.

' Inbenzar:

NITED STATES PA'rENTOFFIoE.

EVAN F. CASH AND ALFRED L. BARON, OF BELLAIRE, OHIO.

IMPROVEMENT IN LANTERNS.

Specification forming part of Letters Patent No. 222,663, dated December16, 1879; application filed September 21, 1878.

To all whom it may concern:

Be it known that we, EVAN 1*. CASH and ALFRED L. BARON, both ofBellaire, in the county of Belmont and State of Ohio, have invented anew and useful Improvement in Lanterns; and we do hereby declare thatthe following is a full and exact description of the same, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon.

The purpose of our invention is the construetion of a coal-oildoubleglobe lantern especially adapted to retain its light underexposure to air-currents and to violent movements, and employs for thatpurpose counterbalancing currents. This lantern has a closed base, andtakes all the air for combustion in at the top, and discharges theproducts of combustion at thetop also.

Theinvention in thislantern consists, mainly,

' in the combination of a clear open air-chamber in the base, anair-chamber between the two globes, and air-inlets at the top, allconstructed and arranged as will be presently described.

It also consists in other operative combinations of the principalelementary parts.

.In order that those skilled in the art may know how to make ourlanterns, we proceed to describe the same, having reference to theaccompanying drawings, making a part of this specification, in which-Figure 1 is an elevation of our lantern, and Fig. 2 a vertical centralsection of the same.

Similar letters denote corresponding parts in each figure.

The general construction and appearance of our lantern is similar tothat known in the market as the Buckeye, and upon which we have receivedseveral patents of the United States.

In the drawings, A represents the lower base, preferably made flaring togive a better support to the lantern when standing, and A designates theupper base, which is preferably vertical in its side outlines. This baseis entirely closed, having no opening for the admission of air, and maybe hinged to the lower base, or rigidly secured to it, as shown in thedrawings. In the latter instance it may have a closely-fittin g door orslide, B, to give access to the filling-nozzle of the oil-reservoir, andto the wickratchet, and to the li ghtin g-hole, and

extending from the bottom of the upper base,

A, to the top or near the top of said upper base, is a clear openchamber, D, which 00- cupies the entire interior of said upper base,except the central portion, through which a communication is had betweenthe oil-reservoir and the burner E. In the drawings are shown supports aa in this chamber D, upon which the perforated disk F rests; but we donot wish to be confined to the use of such supports, as any modeot'support will be equally efficacious.

The perforated disk F, which is perforated not only within the area ofthe burner-cone, but outside of it, forms the upper portion of thechamber 1), but does not extend entirely ,across it, but only such widthas will enable its outer flanged edge to support the inner globe, G,while the outer globe, Gr, rests upon the top of the upper base, A, andit follows,

therefore, that there is a clear open space, H, entirely around theinterior of the base between the exterior edges of the disk and theinner walls of the upper base, A.

The two globes G and G extend about the same height, forming betweenthem the airchamber H but the top of the inner globe fits quite tight-1yinto a metallic chimney, G

The whole top of the lantern is preferably hinged, so that the globesmay be conveniently removed for any purpose, and this top is composed ofa reflector, J, between-which and the exterior of, the metallic chimneyG is a clear open space, I. The outer globe, G, does not extend quite tothe bottom of the reflector, and between the two is a clear open space,I.

These two spaces I and I are the air-inlets which supply all the air forcombustion to the lantern.

Above the open space I is any convenient flange, K, extending out fromthe exterior of the metallic chimney, and serving to prevent rain orwater from entering the air-chamber H. Raised above the top of themetallic chimney is an ordinary protecting-cap.

In operation, air for combustion enters the air spaces or inlets I I,and passes down he tween the globes, through the air-chamber H, (beinginduced by the heat generated in the interiorof the inner globe,) anddown into the chamber D. Thence a portion of it rises into the interiorof the burner and the remaining portion outside the burner, but into theinterior of the inner globe. The products of combustion pass up theinner globe and out through the metallic chimney.

By a mode ofopera-tion frequently described, and now familiar to thoseskilled in the art, the currents of air which pass into the interior ofthe burner are balanced by those passing around its exterior andwithinthe inner globe, so that whatever winds strike the lantern, orwhateyer motion may be imparted to it, the lightwill not beextinguished. The air-inlets 1 and I, one above and the other below thereflector, are essential in this operation, and act together, for,although the lantern would burn when in a state of rest, or in a calm,were the reflector wholly removed and the clear open space between theglobes entirely uncovered, yet in this construction the light would beeasily extinguished by any breeze or V violent motion.

Having thus described our invention, what we claim as new therein is- 1.In a double-globe lantern, the combination, with the exterior globe andthe base, of a ring or cylindericonnecting the globe and the base, andadapted to direct all the air from the space between the globes to theinterior of the inner globe, and to exclude air not passing through saidspace, substantially as and for the purposes set forth.

2. In a double-globe lantern, the combination of an outer and an innerglobe supported in substantially the same horizontal plane, an air-spacebetween the globes, an air-chamber beneath the burner which communicateswith the air-space between the globes, and also with the interior andthe exterior of the burner, the outer walls of which air-chamber extendfrom the top of the lower base to the bottom of the lower globe, andair-inlets above and below the reflector, substantially as and for thepurposes described.

This specification signed and witnessed this 18th day of September,1878.

EVAN F. CASH. ALFRED L. BARON.

Witnesses:

L. W. SEELY, JAs. A. PAYNE.

